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经营范围
发明名称
Improvements in or relating to rotary furnaces
摘要
申请公布号
GB639666(A)
申请公布日期
1950.07.05
申请号
GB19470017493
申请日期
1947.07.02
申请人
SAM FLOYD KEENER
发明人
分类号
C21D9/00
主分类号
C21D9/00
代理机构
代理人
主权项
地址
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